• Contingency and context-sensitive leadership research shows that effectiveness hinges on task structure, follower dynamics, and organizational context, integrating contingency theories, substitutes, and measurement across education settings [6], [8], [19], [16], [15].

• Systematic leadership evaluation in education combines administrator, colleague, student, and self-ratings with psychometrics to assess performance and teaching impact, revealing measurement as central to leadership effectiveness [11], [17], [14], [20], [18], [15].

• Ambiguity and social construction of leadership concepts appear across studies of definition, attribution, and symbolic leadership, challenging singling out stable effects and urging nuanced interpretation [7], [9], [10], [12].

• Leadership in higher education is explored through presidency, governance, budgets, and organizational roles, highlighting practical administration challenges and leadership edge in policy contexts [5], [12], [4], [1], [2].

• Foundational theory integrates leadership effectiveness with management science and organizational theory, drawing from theory-heavy works to unify education and business leadership under common frameworks [1], [2], [4], [6], [19].